EP1003989B1 - Schnellschaltendes ventil - Google Patents
Schnellschaltendes ventil Download PDFInfo
- Publication number
- EP1003989B1 EP1003989B1 EP98948825A EP98948825A EP1003989B1 EP 1003989 B1 EP1003989 B1 EP 1003989B1 EP 98948825 A EP98948825 A EP 98948825A EP 98948825 A EP98948825 A EP 98948825A EP 1003989 B1 EP1003989 B1 EP 1003989B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- actuator
- valve seat
- valve body
- quick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K7/00—Plants in which the working fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof
- F02K7/02—Plants in which the working fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof the jet being intermittent, i.e. pulse-jet
- F02K7/06—Plants in which the working fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof the jet being intermittent, i.e. pulse-jet with combustion chambers having valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/44—Feeding propellants
- F02K9/56—Control
- F02K9/58—Propellant feed valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/004—Actuating devices; Operating means; Releasing devices actuated by piezoelectric means
- F16K31/007—Piezoelectric stacks
Definitions
- the invention relates to a fast-switching valve the characteristics according to the preamble of Saying 1, like it made for example US-A-4,684,104 is known.
- valves For certain applications, fast switching Valves needed that are capable of fluid flow to let through suddenly and the high switching frequency enable.
- Applications for such valves are for example spectrometers where gas samples are accurate dimensioned volume of a spectrographic examination be subjected to the action of the control nozzles of Satellites and the field of microsystems technology.
- valves with extremely short Switching times and high repetition frequency required are required.
- piezoelectric Actuators are used, for example, for metering drives used for liquids, with the actuator on a nozzle tube is attached, from which the liquid in an air jet comes out. Leave this way fast dosing devices for different Realize viscosities and droplet rates.
- p. 569-570 describes a fuel injection valve, in which a piezoelectric rod is stretched and is contracted to the valve opening according to a pulse duration modulation method to control.
- the invention has for its object a fast switching Valve to create that regarding short Switching times, high repetition frequency and with regard to the lifespan limiting number of cycles is improved.
- the valve seat is included an actuator connected to the valve seat when actuated moved and it from the valve body with such a high Acceleration removes that the valve body is not too can follow and lift off the valve seat.
- the passage of the Valve seat is opened for a short defined time, until the valve body under the force of the flowing Medium reached the valve seat again and closed Has.
- the actuator then brings the one with the valve body closed valve seat back to the starting position, so that the next cycle can be performed can.
- the fast-switching valve according to the invention can be designed in this way be that short switching times in the Order of magnitude of 100 ⁇ s and smaller. In the Repetition frequencies of 400 to 1000 Hz were used reached. The response speed and the repetition frequency depend of course on the size of the valve and in particular also on the mass of the valve body.
- the Valve body should have a low density so that its mass is small.
- the valve body can, for example be designed as a hollow body.
- the valve according to the invention is particularly for switching provided by gases. But it can also be used to switch Liquids are used.
- the valve is suitable for. B. for fuel injection in internal combustion engines.
- the actuator carrying the valve body is preferred designed as a piezoelectric contraction body, the contracts in response to an actuation signal.
- valve according to the invention consists in the low wear on the valve body and Valve seat. Since the valve seat extends in the axial direction from removed the valve body and then the valve body from the axial direction, distribute the impact forces are ring-shaped on the valve seat and Valve body. To further reduce wear is according to a preferred embodiment of the invention the actuator is controlled in such a way that it responds to the actuation signal the valve seat quickly and then slowly moved to the first of the valve seat to lift the lifted ball softly.
- a ball can be used as the valve body.
- the invention is not limited to this. Also a conical or similarly designed valve body is possible.
- the valve has a housing 10 which encloses a room 11, which against the environment is completed.
- the room 11 has an inflow opening 12 and an outflow opening 13 along that are arranged on a common axis.
- the inflow opening 12 is to a pressure source (not shown) for the medium to be connected, while the Outflow opening 13 is connected to the consumer.
- Housing 10 On the bottom wall 14 surrounding the outflow opening 13 Housing 10 is an actuator 15 through which a Outflow channel 16 passes through, which with the outflow opening 13 communicates.
- a valve seat 17 On the actuator 15 is a valve seat 17 attached. This consists of a Washer, preferably made of metal, with a centric passage opening 18 is provided. On this Passage opening 18 sits the valve body 19, which here as Ball is formed in such a way that the passage is sealed by the passage opening.
- the valve seat 17 and the actuator 15 form one with the Housing 10 sealingly connected unit.
- the valve body 19 is arranged coaxially to the inflow channel 12 and it is located in an extension of room 11, the serves as a receiving chamber 11a for the valve body 19.
- the maximum diameter of the receiving chamber 11a is 5 times the diameter of the valve body 19. This will ensured that a through the receiving chamber 11a flow passing through the valve body 19 from each Position centered on the passage opening 18, so that the valve body under the action of fluid flow is transported to its closed position.
- FIG. 2 is a schematic sectional view through the Actuator 15 shown. It is a piezoelectric Contraction body consisting of several parallel piezoelectric layers 20, between which thin metal sheets 21 are arranged are. Every second sheet 21 is with a first electrical line 22 connected and the intermediate Sheets are electrical with a second Line 23 connected. This way, several Capacitors with piezoelectric material as Dielectric formed. When connected to lines 22 and 23 when a voltage is applied, the piezoelectric expand Layers 20 out. The tension is reduced or switched off, these layers pull together again.
- the valve does not only work in the position shown in FIG. 1 vertical position, but in any other Orientation. This is because the flow forces, which return the valve body 19 to the valve seat 17, with a sufficient pressure difference between the inflow 12 and the outflow 13, much larger are than the effect of gravity.
- the actuator 15 is controlled by a control unit (not shown) to which the actuation signal is fed.
- 3 shows the position x along the ordinate, which the valve seat 17 occupies in the axial direction in the housing 10.
- Time t is plotted along the abscissa.
- the actuation signal is generated at time t 0 . This causes the actuator 15 to contract quickly until the time t 1 is reached. The time between t 0 and t 1 forms the opening time of the valve.
- the actuator 15 is then contracted further in an interception area that lasts until the time t 2 , but at a considerably lower speed. In the interception area that lasts from t 1 to t 2 , the valve body 19 is gently caught by the valve seat 17, so that a hard impact is avoided and wear is reduced.
- the return phase begins at time t 3 , in which the actuator 15 slowly expands again in order to reach its starting position again at time t 4 . Then the valve is ready for a new opening cycle.
- FIG. 4 is another embodiment of the valve shown, in which compared to Fig. 1, the shape of the Valve body 19 containing receiving chamber 11a changed is.
- the receiving chamber 11a is here as a sphere or hemisphere trained, the center of which is approximately in The center of the valve ball is when it is on the Seat 17 sits. In the wall of the receiving chamber are even distributed openings 25 through which the Medium can flow towards the ball.
- the inflow opening 11 first leads into a distribution chamber 26, from which the medium through the openings 25th flows.
- the spherical formation of the receiving chamber 11a has the advantage of an even better centering of the Valve body 19 on the passage opening 18 of the valve seat.
- the valve chamber 11a limits the movement of the Valve body 19 and represents by their shape and size sure that one passing through the passage opening 18 Flow the valve body 19 in the closed position returns.
- the actuator 15 arranged outside the housing 10.
- the housing 10 is attached to the actuator 15, which in turn on a stationary bracket 30 is attached.
- the valve seat 17 which in this case with the housing is firmly connected.
- the inflow opening 12 is with a flexible line 31 connected, because in this embodiment the whole Housing 10 is movably suspended on the actuator 15. at Actuation of the actuator 15, the housing 10 with the contained valve seat 17 in the direction of the double arrow 32 moves.
- valve seat 17 is arranged such that its seat parallel to the direction of movement 32 of the Actuator 15 runs.
- actuator 15 the valve seat 17 is displaced parallel in its plane, without the ball 19 following this rapid displacement can. Only as a result of the subsequent flow through the outflow opening 13 is the ball 19 back into the Closed position on the seat 17 moves.
- this valve works even with vertical aligned seat.
- the seat 13 can of course also be aligned horizontally.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Check Valves (AREA)
- Lift Valve (AREA)
Description
- Fig. 1
- einen schematischen Längsschnitt durch ein schnellschaltendes Ventil nach der Erfindung,
- Fig. 2
- eine Schnittdarstellung des Aktuators,
- Fig. 3
- ein Zeitdiagramm der Bewegung des Ventilsitzes nach einem Betätigungssignal,
- Fig. 4
- ein zweites Ausführungsbeispiel des den Ventilkörper enthaltenden Raumes,
- Fig. 5
- ein weiteres Ausführungsbeispiel des erfindungsgemäßen Ventils und
- Fig. 6
- ein Ausführungsbeispiel, bei dem der Aktuator in der Ebene des Ventilsitzes wirkt.
Claims (7)
- Schnellschaltendes Ventil mit einem Raum (11), der eine Zuströmöffnung (12) und eine Abströmöffnung (13) aufweist und einen Ventilsitz (17) enthält, welcher von einem bewegbaren Ventilkörper (19) verschließbar ist und von einem Aktuator (15) getragen ist, der auf ein Betätigungssignal hin den Ventilsitz (17) bewegt,
dadurch gekennzeichnet, daß der Aktuator (15) derart gesteuert ist, daß er den Ventilsitz (17) von dem in der Verschlußstellung befindlichen Ventilkörper (19) wegbewegt, wobei diese Bewegung schneller erfolgt, als der Ventilkörper (19) zu folgen vermag. - Schnellschaltendes Ventil nach Anspruch 1, dadurch gekennzeichnet, daß durch den Aktuator (15) ein Abströmkanal (16) hindurchgeht.
- Schnellschaltendes Ventil nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Aktuator (15) ein piezoelektrischer Körper ist.
- Schnellschaltendes Ventil nach Anspruch 3, dadurch gekennzeichnet, daß der Körper mehrere Schichten (20) aus Piezomaterial mit dazwischenangeordneten Elektrodenschichten (21) enthält.
- Schnellschaltendes Ventil nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Aktuator (15) derart gesteuert ist, daß er auf das Betätigungssignal hin den Ventilsitz (17) erst schnell und dann langsamer bewegt, um den zunächst von dem Ventilsitz (17) abgehobenen Ventilkörper (19) weich abzufangen.
- Schnellschaltendes Ventil nach einem der Ansprüche 1-5, dadurch gekennzeichnet, daß die Bewegungsrichtung des Aktuators (15) quer zur Ebene des Ventilsitzes (17) verläuft.
- Schnellschaltendes Ventil nach einem der Ansprüche 1-5, dadurch gekennzeichnet, daß die Bewegungsrichtung des Aktuators (15) parallel zur Ebene des Ventilsitzes (17) verläuft.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19734845 | 1997-08-12 | ||
| DE19734845A DE19734845C1 (de) | 1997-08-12 | 1997-08-12 | Schnellschaltendes Ventil |
| PCT/EP1998/005091 WO1999008030A1 (de) | 1997-08-12 | 1998-08-12 | Schnellschaltendes ventil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1003989A1 EP1003989A1 (de) | 2000-05-31 |
| EP1003989B1 true EP1003989B1 (de) | 2003-04-16 |
Family
ID=7838702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98948825A Expired - Lifetime EP1003989B1 (de) | 1997-08-12 | 1998-08-12 | Schnellschaltendes ventil |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6279872B1 (de) |
| EP (1) | EP1003989B1 (de) |
| JP (1) | JP4467178B2 (de) |
| DE (2) | DE19734845C1 (de) |
| WO (1) | WO1999008030A1 (de) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19800257C1 (de) * | 1998-01-07 | 1999-02-04 | Deutsch Zentr Luft & Raumfahrt | Schnellschaltendes Ventil |
| DE19820626C2 (de) * | 1998-05-08 | 2000-09-07 | Deutsch Zentr Luft & Raumfahrt | Verfahren und Vorrichtung zum Nachweis von Probenmolekülen |
| DE19926570A1 (de) * | 1999-06-11 | 2000-12-14 | Behr Gmbh & Co | Expansionsventil für eine Kraftfahrzeugklimaanlage |
| US6752601B2 (en) * | 2001-04-06 | 2004-06-22 | Ngk Insulators, Ltd. | Micropump |
| AU2003273189A1 (en) * | 2002-10-16 | 2004-05-04 | Matsushita Electric Industrial Co., Ltd | Valve unit and fluid control chip |
| CN1314895C (zh) * | 2004-05-28 | 2007-05-09 | 陈建元 | 电喷有阀自适应式脉冲喷气发动机装置和控制方法 |
| JP2006342856A (ja) * | 2005-06-08 | 2006-12-21 | Ritsumeikan | 流量調整弁 |
| DE102007006458A1 (de) * | 2007-02-05 | 2008-08-07 | Sms Demag Ag | Stranggießeinrichtung zum Erzeugen von Brammen aus Stahl |
| JP4986286B2 (ja) * | 2007-03-30 | 2012-07-25 | 株式会社コガネイ | 流体制御装置 |
| DE102008008465A1 (de) * | 2007-07-27 | 2009-02-05 | Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. | Schaltventil und Verfahren zum Schalten eines Schaltventils |
| FR2927976A1 (fr) * | 2008-02-27 | 2009-08-28 | Fluid Automation Syst | Soupape actionnee electriquement ayant un element d'etancheite a bille. |
| FR2937884A1 (fr) * | 2008-11-05 | 2010-05-07 | Osmooze | Procede de formation d'une emulsion a partir de liquides non miscibles en eux et application a l'alimentation en liquide d'un dispositif de nebulisation |
| KR200463591Y1 (ko) | 2010-10-13 | 2012-11-13 | (주)케이디엔지니어링 | 에어벤트용 누수방지캡 |
| CN103443514B (zh) * | 2011-02-10 | 2015-05-13 | 弗路德自动控制系统有限公司 | 具有密封球的电致动阀 |
| EP2743491B1 (de) * | 2012-12-13 | 2015-08-12 | Continental Automotive GmbH | Ventilkörper, Flüssigkeitseinspritzventil und Verfahren zur Herstellung eines Ventilkörpers |
| US11519517B1 (en) * | 2020-04-10 | 2022-12-06 | Meta Platforms Technologies, Llc | Fluidic devices with piezoelectric actuators and related methods |
| JP7489874B2 (ja) * | 2020-09-03 | 2024-05-24 | 川崎重工業株式会社 | 解除機構付きチェック弁 |
Family Cites Families (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1471916A (en) * | 1974-03-14 | 1977-04-27 | Plessey Co Ltd | Fuel injection arrangements having vibrating fuel injection nozzles |
| US3884417A (en) * | 1972-02-01 | 1975-05-20 | Plessey Handel Investment Ag | Nozzles for the injection of liquid fuel into gaseous media |
| IT978682B (it) * | 1972-02-01 | 1974-09-20 | Plessey Handel Investment Ag | Ugello per l iniezione di carbu rante liquido in mezzi gassosi |
| US3819116A (en) * | 1972-07-26 | 1974-06-25 | Plessey Handel Investment Ag | Swirl passage fuel injection devices |
| US3995813A (en) * | 1974-09-13 | 1976-12-07 | Bart Hans U | Piezoelectric fuel injector valve |
| US4176822A (en) * | 1977-10-31 | 1979-12-04 | Chrysler Corporation | Fuel injection system and control valve for multi-cylinder engines |
| SU846800A1 (ru) * | 1979-07-30 | 1981-07-15 | Каунасский Политехнический Институтим. Ahtahaca Снечкуса | Клапан дл регулировани потокажидКОСТи |
| JPS5958129A (ja) * | 1982-09-28 | 1984-04-03 | Nippon Soken Inc | 燃料噴射装置 |
| JPS60192178A (ja) * | 1984-03-09 | 1985-09-30 | Hitachi Ltd | 流量制御弁 |
| FR2567238B1 (fr) * | 1984-07-06 | 1986-12-26 | Sibe | Electrovanne a effet piezo-electrique |
| JPS61127982A (ja) * | 1984-11-26 | 1986-06-16 | Rion Co Ltd | 圧電開閉弁及びその駆動方法 |
| US4762300A (en) * | 1985-02-19 | 1988-08-09 | Nippondenso Co., Ltd. | Control valve for controlling fluid passage |
| JPS62246667A (ja) * | 1986-04-18 | 1987-10-27 | Ube Ind Ltd | 圧電バルブ及びその駆動方法 |
| JPS62190179U (de) * | 1986-05-26 | 1987-12-03 | ||
| JPS63199997A (ja) * | 1987-02-12 | 1988-08-18 | Mitsubishi Heavy Ind Ltd | Lngタンクのメンブレンの腐食防止方法 |
| JPH0615378Y2 (ja) * | 1987-04-30 | 1994-04-20 | 三菱電機株式会社 | 蓄圧回路の圧力降下用手動弁 |
| JPS63171702U (de) * | 1987-04-30 | 1988-11-08 | ||
| US4971106A (en) * | 1987-09-30 | 1990-11-20 | Toto, Ltd. | Automatically operating valve for regulating water flow and faucet provided with said valve |
| JPH01105080A (ja) * | 1987-10-16 | 1989-04-21 | Hitachi Metals Ltd | 圧電式流量制御弁 |
| JPH01105082A (ja) * | 1987-10-16 | 1989-04-21 | Hitachi Metals Ltd | 圧電式流量制御弁 |
| US4907748A (en) * | 1988-08-12 | 1990-03-13 | Ford Motor Company | Fuel injector with silicon nozzle |
| DE3835788A1 (de) * | 1988-10-20 | 1990-04-26 | Deutsche Forsch Luft Raumfahrt | Schnellschaltendes kugelventil |
| JPH02138501A (ja) * | 1988-11-17 | 1990-05-28 | Smc Corp | ノズルフラッパ機構 |
| JPH03117789A (ja) * | 1989-09-29 | 1991-05-20 | Mitsubishi Kasei Corp | 自動開閉弁装置 |
| US5125625A (en) * | 1991-06-17 | 1992-06-30 | B&W Nuclear Service Company | Quick vent closure assembly for pressurized water reactor |
| JP3139164B2 (ja) * | 1992-09-04 | 2001-02-26 | トヨタ自動車株式会社 | 圧電型圧力制御弁 |
-
1997
- 1997-08-12 DE DE19734845A patent/DE19734845C1/de not_active Expired - Fee Related
-
1998
- 1998-08-12 US US09/485,557 patent/US6279872B1/en not_active Expired - Lifetime
- 1998-08-12 JP JP2000506473A patent/JP4467178B2/ja not_active Expired - Fee Related
- 1998-08-12 WO PCT/EP1998/005091 patent/WO1999008030A1/de not_active Ceased
- 1998-08-12 DE DE59807983T patent/DE59807983D1/de not_active Expired - Lifetime
- 1998-08-12 EP EP98948825A patent/EP1003989B1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1003989A1 (de) | 2000-05-31 |
| JP4467178B2 (ja) | 2010-05-26 |
| US6279872B1 (en) | 2001-08-28 |
| DE59807983D1 (de) | 2003-05-22 |
| JP2001512813A (ja) | 2001-08-28 |
| DE19734845C1 (de) | 1998-11-12 |
| WO1999008030A1 (de) | 1999-02-18 |
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